‘Idaho Stop’ Now Legal in Colorado

Colorado is the latest state to make it legal for people on bikes to treat stop signs like yield signs when no cars are in the intersection.

2 minute read

April 15, 2022, 8:00 AM PDT

By James Brasuell @CasualBrasuell


Crosswalk

Richard Masoner / Flickr

Colorado Governor Jared Polis signed the “Colorado Safety Stop” into law on April 13, 2022, making it legal for people on bikes to treat stop signs as yield signs and treat stop lights as stop signs, according to an article by Bicycle Colorado.

The article cites data that shows the Safety Stop—known in bicycle and planning circles as the Idaho Stop—reduces collisions involving people on bikes and automobile. Delaware, which adopted a similar law in 2017, has seen a 23 percent drop in collisions involving bicycles at stop sign controlled intersections. Researchers from DePaul University published a study in 2016 that also supported Idaho Stops for the safety of people on bikes.

Bicycle Colorado also provides additional information on the new law, as listed in the source article:

  • Younger bicyclists may perform the maneuver if an adult is present.

    Bicyclists can yield and then proceed through stop sign-controlled intersections at up to 10 miles per hour.
  • Intersections where bicyclist-specific lights or signs are present that prohibit the maneuver are exempt from the new law.
  • The bill defines “low speed conveyances” in Colorado law. These are small profile, low-speed vehicles that people use for transportation and recreation, including bicycles and electric bicycles, electric scooters (not including mopeds), and wheelchairs.

The Colorado Legislature approved the law in March 2022, paving the way for this week’s historic bill signing. Bicycle Colorado says the law has been in the works for years.

The state of Colorado now joins Idaho, Delaware, Arkansas, Oregon, Washington, North Dakota, Utah – 2021, and Oklahoma among states where the Idaho Stop is the law of the land. California could have been on the list, but Gov. Gavin Newsom vetoed AB 122 in 2021.

Wednesday, April 13, 2022 in Bicycle Colorado

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

High-rise apartment buildings in Waikiki, Hawaii with steep green mountains in background.

Study: Maui’s Plan to Convert Vacation Rentals to Long-Term Housing Could Cause Nearly $1 Billion Economic Loss

The plan would reduce visitor accommodation by 25,% resulting in 1,900 jobs lost.

April 6, 2025 - Honolulu Civil Beat

Two yellow and white Dallas Area Rapid Transit light rail streetcars at station in Dallas, Texas.

North Texas Transit Leaders Tout Benefits of TOD for Growing Region

At a summit focused on transit-oriented development, policymakers discussed how North Texas’ expanded light rail system can serve as a tool for economic growth.

April 3, 2025 - KERA News

Blue and white Seattle Link light rail train exiting concrete Downtown Bellevue Tunnel in Bellevue, WA.

Why Should We Subsidize Public Transportation?

Many public transit agencies face financial stress due to rising costs, declining fare revenue, and declining subsidies. Transit advocates must provide a strong business case for increasing public transit funding.

April 7, 2025 - Todd Litman

Amtrak Acela

How to Make US Trains Faster

Changes to boarding platforms and a switch to electric trains could improve U.S. passenger rail service without the added cost of high-speed rail.

April 11 - Bloomberg CityLab

Mural showing tools and craft supplies with banner reading 'Things are made here' in front of makerspace in Columbia, Missouri.

Columbia’s Revitalized ‘Loop’ Is a Hub for Local Entrepreneurs

A focus on small businesses is helping a commercial corridor in Columbia, Missouri thrive.

April 11 - Next City

Close-up of wood log with emerald ash borer larvae tracks etched in the wood.

Invasive Insect Threatens Minnesota’s Ash Forests

The Emerald Ash Borer is a rapidly spreading invasive pest threatening Minnesota’s ash trees, and homeowners are encouraged to plant diverse replacement species, avoid moving ash firewood, and monitor for signs of infestation.

April 11 - The Bemidji Pioneer